Stock-Based Compensation (Information Related to Stock-baed Compensation) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended
Sep. 28, 2018	Sep. 29, 2017	Mar. 30, 2018
RSUs:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value per grant (in usd per share)	$ 21.65	$ 30.08
Awards granted and assumed in acquisition (in shares)	12	10
Total fair value of awards released	$ 195	$ 234
Outstanding and unvested (in shares)	21	23
PRUs:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value per grant (in usd per share)	$ 21.23	$ 32.94
Awards granted and assumed in acquisition (in shares)	2	4
Total fair value of awards released	$ 8	$ 23
Outstanding and unvested (in shares)	5	9
Vested but unreleased shares	12
Stock options:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of stock options exercised	$ 11	$ 103
Outstanding (in shares)	13	15
Restricted stock:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding and unvested (in shares)	1	1
Liability-Classified Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability current	$ 14		$ 25
Certain Employees \| RSUs:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted and assumed in acquisition (in shares)	1

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of non-vested options outstanding.

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